a-a a-c a-t a-z aaa aac aar aat aay aaz ac- aca acc acr act acy acz ar- ara arc arr art ary arz at- ata atc atr att atz ay- aya ayc ayr ayt ayz az- aza azt azy azz c-- caa cac car cat cay caz cca ccc ccr cct ccz cra crc crr crt cry crz cta ctc ctr ctt cty ctz cya cyc cyr cyt cz- czc czt ra- raa rac rar rat ray raz rca rcc rcr rct rra rrc rrr rrt rta rtc rtr rtt rty rtz ry- rya ryc ryr ryy ryz rza rzy taa tac tar tat tay taz tca tcc tcr tct tra trc trr trt try trz tta ttc ttr ttt tty tya tyc tyr tyt tza yaa yac yar yat yay yaz yca ycc ycy yra yrc yrt yta ytc ytr ytt yyc yyt yyy yyz yzr yzy zaa zac zar zat zay zaz zta ztr zzr zzt zzy zzz